Systems and Methods for Multi-Device Interaction

Systems, devices and methods are provided for multi-device interactions. For example, a transmitting device detects a media content control command input by a user for operation of a first application client, wherein the media content control command includes media content identification; the transmitting device encodes the media content control command into an audio identifier string; and the transmitting device transmits the audio identifier string through first sound waves. A receiving device is configured to detect the first sound waves using a second application client, extract the audio identifier string from the first sound waves, decode the audio identifier string to acquire the media content control command, and operate on first media content corresponding to the media content identification included in the media content control command.